Structural LTP: Signal transduction, actin cytoskeleton reorganization, and membrane remodeling of dendritic spines

Structural LTP: Signal transduction, actin cytoskeleton reorganization, and membrane remodeling of dendritic spines
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结构 LTP:信号转导、肌动蛋白细胞骨架重组和树突棘膜重塑

DOI:
10.1016/j.conb.2022.102534
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发表时间:
2022-04
影响因子:
5.7
通讯作者:
Liu Jia-Jia
Liu Jia-Jia
中科院分区:
医学2区
文献类型:
--
作者:
Yang Yanrui;Liu Jia-Jia

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兴奋性神经元中长时程突触增强(LTP)的诱导触发树突棘的瞬时增大,随后衰减至持续的尺寸扩张,这一过程称为结构性LTP,其有助于学习和记忆的细胞基础。树突棘的结构变化涉及肌动蛋白细胞骨架重组、膜运输和膜重塑的时空协调。在这篇综述中,我们讨论了最近的进展,了解结构LTP的复杂机制,强调脊柱质膜和肌动蛋白细胞骨架之间的相互作用。我们还强调了开放的问题和挑战,以进一步了解这一有趣的细胞神经生物学现象。
Induction of long-term synaptic potentiation (LTP) in excitatory neurons triggers a transient enlargement of dendritic spines followed by decay to sustained size expansion, a process termed structural LTP which contributes to the cellular basis of learning and memory. The activity-induced structural changes in dendritic spines involve spatiotemporal coordination of actin cytoskeleton reorganization, membrane trafficking and membrane remodeling. In this review, we discuss recent progresses in understanding the complex mechanisms underlying structural LTP, with an emphasis on the interplay between the spine plasma membrane and the actin cytoskeleton. We also highlight open questions and challenges to further understand this interesting cell neurobiological phenomenon.
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